Thomas h



THoMAs H. MORTIMR, or CHARLESTON, SOUTHCAROLINA.

' Leners Param No. 85,685, daad .Ta/num 5, 1869.

Bonanni-Acme APPARATUS.

The Schedule referred to ix. these Letters atent and making'part of the same.

Y To 'it ma/y concern:

Be it known that I, THOMAS H. Moerman, of the city and district of Charleston, and State of South Caro` stantly be detached from the davit-tackle when lowered into the water.

`In the drawings- A is the boat, provided at each end with a hook,a.

B is a rod suspended permanently from the davits-or cranes, by ropesE E, and supporting the boat.

" By raising and loweringthe rod B, the boat can be hoisted up or lowered into the water.

The body of the rod is nearly in the shape of a h ollow or deeply-grooved semi-cylinder, divided at the centre by the locking and unlocking-device, hereinafter explained.

Y The rod atits ends terminates in a stout nat plate,

b, bent into the form of a goose-neck, as shownin gA stout rod, fr, slides longitudinally in the cavity of rod B, its end capable of projecting across the space o, into a hole near the end of the plate b. It is always thrownA into this position for attaching -the boat, the latter operation being effected simply by engaging the hooksa a over it inthe bend of the goose-neck.

This being the method of attaching the boat to the bar B,'it follows that when the rods lr c' are withdrawn towards the centre of the bar B, the hooks are instantly disengaged and the boat detached.

The device for simultaneously withdra ring or thrusting out the rods c' r, consists of a circular plate, O, .capable of being rotated on a spindle, c, and provided with two curved eccentric slots c c','constructed and arranged in the plate, as shown in g. l, operating in connection with a pin', hook, or arm, i, from each rod, whichprojects through the slot on that side of the spindle.

By rotating the plate O partially around its axis, to the right, as seenin the `drawings, the arm i is forced towards the centre' of the plate, withdrawing the rods simultaneously, and detaching the boat. By rocking. the plate back towards the left, the arms are forced` 'back to the position shown in g. 1.

' Arms D D may be attached to the plate, for 'the purpose of rocking it more easily,'and one of-them, D, maybe operated by the person inthe boat, by means of One -of the arms, D', may, lif preferred, have a trippingcord, e, attached to it, which will raise the arm when the boat is lowered to a certain point, and thereby automatically detach the boat.

Fig. 1 shows the boat j ust reaching the point in .its descent when 'the tripping-cord begins to operate. l'If the boat be lowered any further, the cord will rocli the plate O, and disengage the apparatus from the boat.

-The arms it' may be provided with a loop or eye'at their outer end, travelling. on a guide-rod, J ,in order to cause the rods lr fr to move back and forth in a straight line, vor the bar B may be made 'a hollow cylinderbe'- tween the 'plate G andthe ends, in which case the rods fr fr wiil be coniined in position, and made to travel in a line with the'axis of bar B.

It will be observed that the eccentric slots'cause the plate -to operate the rods 1yr with increasing power, as they approach the point where they disengage the hooks a a, and drop the boat.

leversV D D.

manently attached to the dav-its or cranes, wil1 not be inthe way in the slightest degree;

If it is not desired to use it at any-time, the ropes stowed away with the boat on deck, or in any other convenient place.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is-

1. The plate C, haying the eccentric slots c c', when 'connected with the bar B and rods r r, in the manner and for the purpose set forth.

2. The combination of plate O and rods r lwith the levers D D', or either of them, and the rope e, substantially as and for the purpose set forth.

J. W. LAzBRUon,

I. Hnenn Dawson.

a cord, vso that he can detach the boat when he pleases.Y

The whole device is very simple, strong, and durable, and operates easily and with but a single motion of the It can be got up at a' slight expense, and when per- E E can be unlocked from the bar B, and the latter 3. The arrangement of the bar B, having the curved anges b b on its ends, with the rods c' r, arms 'l'. fi, 

